An edition of 70 Ma impact hypothesis (2009)

70 Ma impact hypothesis

concerning the catastropic origin of the Canadian shield, the catastropic separation of Canada, Kalaallit Nunaat, and the Scandinavian Peninsula, the catastropic origin of Pacific and Indian Ocean spreading ridges, the origin of the East Pacific subduction zones, the origin of the American Cordillera, the alteration of earth inclination and biologic adjustments

By Ernest H. Stegeman